[petsc-users] two issues with sparse direct solvers

[Gideon Simpson]

I’m having issues with both SuperLU dist and MUMPS, as compiled by PETsc, in the following sense:

1.  For large enough systems, which seems to vary depending on which computer I’m on, MUMPS seems to just die and never start, when it’s used as the linear solver within a SNES.    There’s no error message, it just sits there and doesn’t do anything.

2.  When running with SuperLU dist, I got the following error, with no further information:

MPI_ABORT was invoked on rank 36 in communicator MPI_COMM_WORLD 
with errorcode 59.

NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
You may or may not see output from other processes, depending on
exactly when Open MPI kills them.



-gideon

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